更新

node_modules/css-tree/lib/syntax/node/CDO.js

@@ -0,0 +1,19 @@
+import { CDO } from '../../tokenizer/index.js';
+
+export const name = 'CDO';
+export const structure = [];
+
+export function parse() {
+    const start = this.tokenStart;
+
+    this.eat(CDO); // <!--
+
+    return {
+        type: 'CDO',
+        loc: this.getLocation(start, this.tokenStart)
+    };
+}
+
+export function generate() {
+    this.token(CDO, '<!--');
+}